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Fertilizing Science of Aquatic Fertilizing - Discuss fertilizing techniques and proper aquatic plant nutrition here.

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Old 06-16-2006, 03:30 PM   #11 (permalink)
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Originally Posted by Elkmor
Say, I have 20 ppm of K, 5 ppm of Mg and 0.2 ppm of Fe.

After 50% water change (in bad case or in case of RO water) I'll have only 10 ppm of K, 2,5 ppm of Mg and 0.1 ppm of Fe. Is it normal? Will plant suffer from Mg defeciency? From K defeciency? I think that some species of plants will.
No they will not suffer from deficiency. They may have difficulties due to the sudden change.
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